Johnson Creek Dam
Key Takeaway
Johnson Creek Dam is classified as significant hazard in Massachusetts. It was completed in 1913 and is 113 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 16 ft (taller than 56.3% in MA) |
| Dam Length | 100 ft |
| Dam Type | Concrete |
| Max Storage | 220 acre-ft |
| Normal Storage | 55 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 5 sq mi |
| Year Completed | 1913 (113 years old) |
| NID ID | MA00188 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
TOWN OF GROVELAND, HIGHWAY DEPARTMENT
Local Government
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Significant Hazard 12 ftFrequently Asked Questions
What is the hazard classification of Johnson Creek Dam?
Johnson Creek Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Johnson Creek Dam?
Johnson Creek Dam is owned by TOWN OF GROVELAND, HIGHWAY DEPARTMENT (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Johnson Creek Dam built?
Johnson Creek Dam was completed in 1913, making it 113 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Johnson Creek Dam?
Johnson Creek Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Johnson Creek Dam?
Johnson Creek Dam has a dam height of 16 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Johnson Creek Dam last inspected?
Johnson Creek Dam was last inspected on May 9, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.